TW201324501A - 在具有取消資料之讀取通道儲存器之磁性記錄系統中之以硬體為基礎之軌道間干擾減少 - Google Patents
在具有取消資料之讀取通道儲存器之磁性記錄系統中之以硬體為基礎之軌道間干擾減少 Download PDFInfo
- Publication number
- TW201324501A TW201324501A TW101136054A TW101136054A TW201324501A TW 201324501 A TW201324501 A TW 201324501A TW 101136054 A TW101136054 A TW 101136054A TW 101136054 A TW101136054 A TW 101136054A TW 201324501 A TW201324501 A TW 201324501A
- Authority
- TW
- Taiwan
- Prior art keywords
- data
- iti
- read
- inter
- track
- Prior art date
Links
- 230000000116 mitigating effect Effects 0.000 title abstract description 7
- 230000015654 memory Effects 0.000 claims abstract description 66
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000004044 response Effects 0.000 claims abstract description 8
- 230000009467 reduction Effects 0.000 claims description 125
- 239000000463 material Substances 0.000 description 27
- 230000003111 delayed effect Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000000872 buffer Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/09—Digital recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
- G11B19/041—Detection or prevention of read or write errors
- G11B19/045—Detection or prevention of read or write errors by detecting mistracking
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
Landscapes
- Digital Magnetic Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/250,246 US8873177B2 (en) | 2011-09-30 | 2011-09-30 | Hardware-based methods and apparatus for inter-track interference mitigation in magnetic recording systems |
| US13/460,204 US8830612B2 (en) | 2011-09-30 | 2012-04-30 | Hardware-based inter-track interference mitigation in magnetic recording systems with read channel storage of cancelation data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201324501A true TW201324501A (zh) | 2013-06-16 |
Family
ID=47044820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101136054A TW201324501A (zh) | 2011-09-30 | 2012-09-28 | 在具有取消資料之讀取通道儲存器之磁性記錄系統中之以硬體為基礎之軌道間干擾減少 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8830612B2 (enrdf_load_stackoverflow) |
| EP (1) | EP2587483A1 (enrdf_load_stackoverflow) |
| JP (1) | JP2013080554A (enrdf_load_stackoverflow) |
| KR (1) | KR20130035918A (enrdf_load_stackoverflow) |
| CN (1) | CN103219027A (enrdf_load_stackoverflow) |
| TW (1) | TW201324501A (enrdf_load_stackoverflow) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8902534B2 (en) * | 2012-08-03 | 2014-12-02 | HGST Netherlands B.V. | Implementing track following using data characteristics for positional information |
| US8848308B2 (en) * | 2013-03-04 | 2014-09-30 | Lsi Corporation | Systems and methods for ADC sample based inter-track interference compensation |
| US9001442B2 (en) | 2013-03-15 | 2015-04-07 | Seagate Technology Llc | Detection of adjacent track interference using size-adjustable sliding window |
| US8964322B2 (en) | 2013-07-15 | 2015-02-24 | Seagate Technology Llc | Size adjustable inter-track interference cancellation |
| US9378083B2 (en) * | 2013-12-04 | 2016-06-28 | Seagate Technology Llc | Adaptive read error recovery for memory devices |
| US9397703B2 (en) | 2013-12-04 | 2016-07-19 | Seagate Technology Llc | Adaptive read error recovery for memory devices |
| US9281006B2 (en) | 2013-12-13 | 2016-03-08 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Systems and methods for ATI characterization |
| US8917467B1 (en) | 2013-12-13 | 2014-12-23 | Lsi Corporation | Systems and methods for ATI mitigation |
| US9240199B2 (en) | 2014-03-12 | 2016-01-19 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Systems and methods for distortion characterization |
| US8947805B1 (en) | 2014-03-18 | 2015-02-03 | HGST Netherlands B.V. | Low complexity inter-track interference cancellation receiver for magnetic multiple-input, multiple-output (MIMO) channel |
| JP6121938B2 (ja) * | 2014-04-07 | 2017-04-26 | 株式会社東芝 | 磁気ディスク装置および読み出し制御方法 |
| US9099157B1 (en) | 2014-04-22 | 2015-08-04 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Systems and methods for adjacent track interference based re-writing |
| US8976473B1 (en) | 2014-05-21 | 2015-03-10 | Seagate Technology Llc | Inter-track interference cancellation based on predetermined data patterns in adjacent tracks |
| US9117463B1 (en) | 2014-06-23 | 2015-08-25 | Western Digital Technologies, Inc. | Data storage device erasing multiple adjacent data tracks to recover from inter-track interference |
| US9472237B1 (en) * | 2015-04-27 | 2016-10-18 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Systems and methods for side-track aided data recovery |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6532272B1 (en) * | 1998-08-12 | 2003-03-11 | New Mexico State University Technology Transfer Corporation | RAM-search processor for intersymbol interference cancellation |
| JP4498644B2 (ja) * | 2001-03-14 | 2010-07-07 | 富士通株式会社 | データ再生装置 |
| JP2007518202A (ja) * | 2003-11-18 | 2007-07-05 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 情報キャリアから情報を読取るための装置及び方法。 |
| US7002762B2 (en) * | 2004-02-12 | 2006-02-21 | University Of Maryland | Method for intersymbol interference removal in data recovery |
| US20070104078A1 (en) | 2004-11-03 | 2007-05-10 | Koninklijke Philips Electronics N.V. | Apparatus and method for reading information from an information carrier |
| US7253986B2 (en) * | 2005-08-30 | 2007-08-07 | International Business Machines Corporation | System and method for deconvolution of multiple data tracks |
| US7623312B2 (en) * | 2007-09-28 | 2009-11-24 | Kabushiki Kaisha Toshiba | Hard disk drive off track event method and device |
| US8681439B2 (en) * | 2010-09-13 | 2014-03-25 | Lsi Corporation | Systems and methods for handling sector gaps in inter-track interference compensation |
| US8693119B2 (en) * | 2011-07-19 | 2014-04-08 | Lsi Corporation | Energy-based inter-track interference cancellation |
| US8879182B2 (en) * | 2011-07-19 | 2014-11-04 | Lsi Corporation | Storage media inter-track interference cancellation |
-
2012
- 2012-04-30 US US13/460,204 patent/US8830612B2/en active Active
- 2012-09-26 EP EP12186043.1A patent/EP2587483A1/en not_active Withdrawn
- 2012-09-27 KR KR1020120107541A patent/KR20130035918A/ko not_active Withdrawn
- 2012-09-28 CN CN2012105958681A patent/CN103219027A/zh active Pending
- 2012-09-28 JP JP2012215800A patent/JP2013080554A/ja not_active Withdrawn
- 2012-09-28 TW TW101136054A patent/TW201324501A/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP2587483A1 (en) | 2013-05-01 |
| CN103219027A (zh) | 2013-07-24 |
| KR20130035918A (ko) | 2013-04-09 |
| US20130083418A1 (en) | 2013-04-04 |
| JP2013080554A (ja) | 2013-05-02 |
| US8830612B2 (en) | 2014-09-09 |
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